A bucket of human excrement thrown on a statue of British coloniser Cecil Rhodes at a South African university has escalated protests over racial transformation since the end of apartheid 21 years ago.

The police chief in Ferguson, Missouri resigned Wednesday after a scathing US Justice Department report into the shooting of unarmed black teenager Michael Brown by one of his officers, US media reported.

The University of Oklahoma has closed a fraternity linked to a racist video of students singing racial epithets and ordered its members to move out of the house, University President David Boren said on Monday.

US President Barack Obama said Saturday that the fight against racism in the US is not yet over, during a speech in Selma, Alabama on the 50th anniversary of the peaceful march of African Americans demanding the right to vote, which was the catalyst of the Voting Rights Act.

The lawsuit filed against two US police officials for assaulting Sureshbhai Patel leaving him partially paralysed is weak and might not be able to get full justice to him, an eminent Indian-American attorney has said.

The victim of a racist incident involving Chelsea football fans in the Paris metro did not know the incident had been filmed and widely broadcast and will now lodge an official complaint with police, he told French daily Le Parisien.

Leeds United defender Giuseppe Bellusci has had a misconduct charge for allegedly racially abusing Norwich City striker Cameron Jerome found not proven by an Independent Regulatory Commission, the Football Association said on Friday.

Minister of State for Home Affairs Kiren Rijiju on Tuesday lauded the efforts and strategies of Delhi Police to deal with challenges, and added that the achievements of the men in uniform should be projected proportionately.